(−)-α-Pinene
ALDRICH/W290203 - ≥97%, FCC, FG
Synonym: (1S)-(−)-α-Pinene; (1S,5S)
CAS Number: 7785-26-4
Empirical Formula (Hill Notation): C10H16
Molecular Weight: 136.23
EC Number: 232-077-3
MDL Number: MFCD00064145
Linear Formula: C10H16
Product Type: Chemical
| agency | follows IFRA guidelines |
| application(s) | flavors and fragrances |
| assay | ≥97% |
| autoignition temp. | 491 °F |
| biological source | Pinus spp. |
| bp | 155-156 °C (lit.) |
| density | 0.857 g/mL at 25 °C |
| documentation | see Safety & Documentation for available documents |
| food allergen | no known allergens |
| fragrance allergen | α-pinene and β-pinene |
| grade | FG |
| Fragrance grade | |
| Halal | |
| Kosher | |
| InChI | 1S/C10H16/c1-7-4-5-8-6-9( |
| InChI key | GRWFGVWFFZKLTI-IUCAKERBSA |
| mp | -64 °C (lit.) |
| optical activity | [α]20/D −41°, neat |
| organoleptic | camphoraceous; woody; pine |
| Quality Level | 300 ![]() |
400 ![]() |
|
| refractive index | n |
| reg. compliance | EU Regulation 1223/2009 |
| EU Regulation 1334/2008 & 178/2002 | |
| FCC | |
| FDA 21 CFR 172.515 | |
| FDA 21 CFR 175.300 | |
| FDA 21 CFR 175.320 | |
| SMILES string | CC1=CCC2CC1C2(C)C |
| vapor density | 4.7 (vs air) |
| vapor pressure | ~3 mmHg ( 20 °C) |
| General description: | (-)-α-Pinene is a volatile monoterpene mainly found in forest trees such as Eucalyptus sp., Pinus sp. and Quercus sp. |
| Packaging: | 1 kg in glass bottle |
| Packaging: | 20 kg in composite drum |
| Packaging: | 8 kg in steel drum |
| Symbol | ![]() ![]() ![]() GHS02,GHS07,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H226 - H302 - H304 - H315 - H317 - H410 |
| Precautionary statements | P210 - P273 - P280 - P301 + P310 + P331 - P301 + P312 + P330 - P302 + P352 |
| Hazard Codes | Xi,N |
| Risk Statements | 10-36/37/38-43-50 |
| Safety Statements | 26-36/37-61 |
| RIDADR | UN 2368 3 / PGIII |
| WGK Germany | WGK 3 |
| Flash Point(F) | 88.3 °F |
| Flash Point(C) | 31.3 °C |
| Purity | ≥97% |
| bp | 155-156 °C (lit.) |
| mp | -64 °C (lit.) |
| Density | 0.857 g/mL at 25 °C |
| Refractive Index | n |
| FEMA Number | 2902 |
| UNSPSC | 12164502 |





